<template>
  <div class="app">
    <h1>我是App组件(祖)</h1>
    <Child/>
  </div>
</template>

<script>
import Child from "./components/Child"
export default {
  name: "App",
  components:{
    Child
  }
};
</script>

<style>
.app{
  background-color: gray;
  padding: 10px;
}
</style>